public override int GetHashCode() { unchecked { int hashCode = _meetingDateTime.GetHashCode(); hashCode = (hashCode * 397) ^ SubmissionTime.GetHashCode(); hashCode = (hashCode * 397) ^ (EmployeeId != null ? EmployeeId.GetHashCode() : 0); hashCode = (hashCode * 397) ^ MeetingDuration; return(hashCode); } }